spate vs plenty

spate and plenty both are nouns.

Word	Noun	Adjective	Verb	Adverb
spate	Yes	No	No	No
plenty	Yes	No	No	Yes

As nouns, spate and plenty are synonyms defined as:

spate and plenty: (often followed by `of') a large number or amount or extent

spate (noun)	plenty (noun)
the occurrence of a water flow resulting from sudden rain or melting snow	a full supply
a sudden forceful flow	(often followed by `of') a large number or amount or extent
(often followed by `of') a large number or amount or extent

spate (adverb)	plenty (adverb)
	as much as necessary